#define _CRT_SECURE_NO_WARNINGS 1
#include<iostream>
using namespace std;

#include"string.h"

int main()
{
	zc::string s1("zhouchao");
	cout << s1.c_str() << endl;
	zc::string s2 = s1;
	cout << s2.c_str() <<endl;
	return 0;
}